The fastest way to find your Excel version

Open Excel and look at the top left corner of the window. Click File, then click Account (or Help on a Mac). You will see your version number listed under "About Microsoft Excel" — it will look like "Version 2404" or "Excel 2021" or "Excel 365", depending on which edition you own.

If you do not have Excel open, you can also right-click the Excel icon on your desktop or in your applications folder, select Properties (Windows) or Get Info (Mac), and look for the version there. The exact location varies slightly between Windows and Mac, but both methods take less than a minute.

Key Takeaways

  • The quickest method is to open Excel, click File, then Account, and read the version number displayed on that screen.
  • Excel version numbers follow different naming schemes: subscription versions show dates like "2404", while older versions show years like "2021" or "2019".
  • You can also find the version by right-clicking the Excel application icon and viewing its properties without opening the program.
  • Knowing your version matters because some features only work in newer versions, and older versions may not open files created in newer ones.

Where to look in the File menu

The File menu is the most reliable place to check. In Excel on Windows, click File at the top left, then look for Account in the left sidebar. On the right side of that screen, under "About Microsoft Excel", you will see the full version number and build number.

On a Mac, the path is slightly different. Click Excel in the menu bar at the very top of your screen, then select About Excel. A small window will pop up showing your version immediately. This method works the same way whether you use Excel 365, Excel 2021, or an older standalone version.

Understanding version numbers and what they mean

Excel version numbers come in different formats depending on when the software was released. Excel 365 (the subscription version) uses a date-based system: version 2404 means April 2024, version 2311 means November 2023, and so on. These versions update automatically every month if you have an active subscription.

Older standalone versions use the year they were released: Excel 2021, Excel 2019, Excel 2016, and so on. These versions do not update automatically — you own the specific year you purchased. If you see a version number like 16.16.27 or 17.20.1, that is the build number, which shows minor updates within the same version year.

The build number matters when you are troubleshooting problems, because Microsoft sometimes releases small fixes between major version updates. If you contact support or search for a bug, including both the version and the build number gives you the most accurate information.

Checking version on Windows without opening Excel

Right-click the Excel icon on your desktop or in your Start menu, then select Properties. A window will open. Click the Details tab at the top. Look for the row labeled "Product version" — that is your Excel version number.

If you have Excel pinned to your taskbar, right-click it there and select Properties from the menu that appears. The same Details tab will show you the version. This method is useful if you want to check the version without launching the program, which can save time if Excel takes a while to start on your computer.

Checking version on Mac without opening Excel

Click the Finder icon in your dock, then navigate to Applications. Find Microsoft Excel in the list, right-click it, and select Get Info. A window will open showing details about the application. Look for the line that says "Version" — that is your Excel version number.

You can also use Spotlight search to find this information faster. Press Command + Space, type "Excel", and when Excel appears in the results, press Command + I to open the Get Info window directly. Both methods show the same version information without requiring you to launch the program.

Why your version number matters

Newer versions of Excel include features that older versions do not have. If someone sends you a file created in Excel 2024 and you are using Excel 2019, you may not be able to open it, or some formulas and formatting may not display correctly. Knowing your version helps you understand whether you can use a particular feature or open a particular file.

Version numbers also matter for troubleshooting. If you encounter a bug or unusual behavior, Microsoft support will ask what version you are running. Older versions may have known issues that are fixed in newer ones, so checking your version is often the first step in solving a problem. If you use Excel 365, you can also check whether you are on the latest monthly update, which sometimes fixes issues that appeared in the previous month.

Frequently Asked Questions

What is the difference between Excel 365 and Excel 2021?

Excel 365 is a subscription that updates every month with new features and fixes. Excel 2021 is a one-time purchase that stays the same version unless you buy a newer year. Excel 365 costs less per month but requires an active subscription, while Excel 2021 has no ongoing cost but does not receive new features after purchase.

Can I use a file created in a newer Excel version in an older one?

Sometimes, but not always. If the file uses features that only exist in the newer version, the older version may not open it or may display it incorrectly. Saving the file in an older format (.xls instead of .xlsx) can help, but the safest approach is to update to a newer version if you regularly receive files from others.

Why does my version number have four parts, like 16.16.27.100?

That is the full build number. The first number (16) represents the major version year. The remaining numbers track smaller updates and fixes released after the main version launched. You only need the first number for most purposes, but the full build number is useful when contacting support.

Does my version number change when Excel updates?

If you use Excel 365, yes — the version number changes every month. If you own Excel 2021 or an older year, the version number stays the same unless you manually install a major update or purchase a newer version. You can check for updates in File > Account > Update Options on Windows.